Overview
SAINT JEAN BREVELAY route de Bignan is a wastewater treatment plant serving Saint-Jean-Brévelay, Bretagne, France. It serves a population of 30,483 and operates under the EU Urban Waste Water Treatment Directive.
SAINT JEAN BREVELAY route de Bignan is a wastewater treatment plant located in Saint-Jean-Brévelay, in the Bretagne region of France. The plant serves a population of approximately 30,483, placing it in the medium agglomeration category under EU classification. The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into freshwater. The designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating the plant's scale. French regulations, enforced by the Agences de l'Eau, ensure compliance with discharge standards. The plant's treated effluent is discharged into local watercourses that drain into the Gulf of Morbihan or the Atlantic Ocean. The region's watershed supports diverse aquatic life and is important for coastal water quality. The plant plays a key role in protecting downstream ecosystems and maintaining the ecological balance of the area.
Environmental context
The plant discharges into local rivers that flow into the Gulf of Morbihan, a semi-enclosed marine basin connected to the Atlantic Ocean. The Gulf is ecologically sensitive, supporting seagrass beds, shellfish beds, and migratory bird populations. The plant's treatment performance directly affects nutrient levels and water quality in this coastal environment, which is vital for tourism and fisheries.
Frequently asked questions
The plant is located on D 1, Toultan, in Saint-Jean-Brévelay, Morbihan, Bretagne, France.
The plant serves a population of 30,483, classifying it as a medium-sized agglomeration under EU standards.
The treated effluent is discharged into local watercourses that eventually flow into the Gulf of Morbihan and the Atlantic Ocean.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations over 2,000 population equivalent discharging into freshwater.
For medium agglomerations in France, secondary treatment (biological treatment) is standard, with tertiary treatment required if discharging into sensitive areas.
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